finally can compile the bme driver
This commit is contained in:
@@ -4,7 +4,10 @@ cmake_minimum_required(VERSION 3.5)
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# (Not part of the boilerplate)
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# (Not part of the boilerplate)
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# This example uses an extra component for common functions such as Wi-Fi and Ethernet connection.
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# This example uses an extra component for common functions such as Wi-Fi and Ethernet connection.
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set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/protocol_examples_common)
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set(EXTRA_COMPONENT_DIRS
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$ENV{IDF_PATH}/examples/common_components/protocol_examples_common
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components/bme280
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)
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include($ENV{IDF_PATH}/tools/cmake/project.cmake)
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include($ENV{IDF_PATH}/tools/cmake/project.cmake)
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project(bme280)
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project(bme280_station)
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2
Makefile
2
Makefile
@@ -3,7 +3,7 @@
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# project subdirectory.
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# project subdirectory.
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#
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#
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PROJECT_NAME := bme280
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PROJECT_NAME := bme280_station
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EXTRA_COMPONENT_DIRS = $(IDF_PATH)/examples/common_components/protocol_examples_common
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EXTRA_COMPONENT_DIRS = $(IDF_PATH)/examples/common_components/protocol_examples_common
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3
components/bme280/CMakeLists.txt
Normal file
3
components/bme280/CMakeLists.txt
Normal file
@@ -0,0 +1,3 @@
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idf_component_register(SRCS "bme280.c" "bme280_sup.c"
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INCLUDE_DIRS "."
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REQUIRES i2c)
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1273
components/bme280/bme280.c
Normal file
1273
components/bme280/bme280.c
Normal file
File diff suppressed because it is too large
Load Diff
240
components/bme280/bme280.h
Normal file
240
components/bme280/bme280.h
Normal file
@@ -0,0 +1,240 @@
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/**
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* Copyright (C) 2016 - 2017 Bosch Sensortec GmbH
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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|
* Redistributions of source code must retain the above copyright
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||||||
|
* notice, this list of conditions and the following disclaimer.
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||||||
|
*
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||||||
|
* Redistributions in binary form must reproduce the above copyright
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||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
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||||||
|
*
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|
* Neither the name of the copyright holder nor the names of the
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||||||
|
* contributors may be used to endorse or promote products derived from
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|
* this software without specific prior written permission.
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||||||
|
*
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||||||
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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||||||
|
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
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||||||
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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||||||
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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||||||
|
* DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
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||||||
|
* OR CONTRIBUTORS BE LIABLE FOR ANY
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||||||
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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||||||
|
* OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
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||||||
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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||||||
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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||||||
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||||
|
* ANY WAY OUT OF THE USE OF THIS
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||||||
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
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|
*
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|
* The information provided is believed to be accurate and reliable.
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|
* The copyright holder assumes no responsibility
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||||||
|
* for the consequences of use
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||||||
|
* of such information nor for any infringement of patents or
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||||||
|
* other rights of third parties which may result from its use.
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* No license is granted by implication or otherwise under any patent or
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* patent rights of the copyright holder.
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*
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* @file bme280.h
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* @date 22 Nov 2017
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* @version 3.3.2
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* @brief
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*
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*/
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/*! @file bme280.h
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@brief Sensor driver for BME280 sensor */
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/*!
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* @defgroup BME280 SENSOR API
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* @{*/
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#ifndef BME280_H_
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#define BME280_H_
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/*! CPP guard */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Header includes */
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#include "bme280_defs.h"
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/*!
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* @brief This API is the entry point.
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* It reads the chip-id and calibration data from the sensor.
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*
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* @param[in,out] dev : Structure instance of bme280_dev
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*
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* @return Result of API execution status
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* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
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*/
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int8_t bme280_init(struct bme280_dev *dev);
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/*!
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* @brief This API writes the given data to the register address
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* of the sensor.
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*
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* @param[in] reg_addr : Register address from where the data to be written.
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* @param[in] reg_data : Pointer to data buffer which is to be written
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* in the sensor.
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* @param[in] len : No of bytes of data to write..
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* @param[in] dev : Structure instance of bme280_dev.
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*
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* @return Result of API execution status
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* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
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*/
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int8_t bme280_set_regs(uint8_t *reg_addr, const uint8_t *reg_data, uint8_t len, const struct bme280_dev *dev);
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/*!
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* @brief This API reads the data from the given register address of the sensor.
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*
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* @param[in] reg_addr : Register address from where the data to be read
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* @param[out] reg_data : Pointer to data buffer to store the read data.
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* @param[in] len : No of bytes of data to be read.
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* @param[in] dev : Structure instance of bme280_dev.
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*
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* @return Result of API execution status
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* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
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*/
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int8_t bme280_get_regs(uint8_t reg_addr, uint8_t *reg_data, uint16_t len, const struct bme280_dev *dev);
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/*!
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* @brief This API sets the oversampling, filter and standby duration
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* (normal mode) settings in the sensor.
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*
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* @param[in] dev : Structure instance of bme280_dev.
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* @param[in] desired_settings : Variable used to select the settings which
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* are to be set in the sensor.
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*
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* @note : Below are the macros to be used by the user for selecting the
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* desired settings. User can do OR operation of these macros for configuring
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* multiple settings.
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*
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* Macros | Functionality
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* -----------------------|----------------------------------------------
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* BME280_OSR_PRESS_SEL | To set pressure oversampling.
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* BME280_OSR_TEMP_SEL | To set temperature oversampling.
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* BME280_OSR_HUM_SEL | To set humidity oversampling.
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* BME280_FILTER_SEL | To set filter setting.
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* BME280_STANDBY_SEL | To set standby duration setting.
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*
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* @return Result of API execution status
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* @retval zero -> Success / +ve value -> Warning / -ve value -> Error.
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*/
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int8_t bme280_set_sensor_settings(uint8_t desired_settings, const struct bme280_dev *dev);
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/*!
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* @brief This API gets the oversampling, filter and standby duration
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* (normal mode) settings from the sensor.
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*
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* @param[in,out] dev : Structure instance of bme280_dev.
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*
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* @return Result of API execution status
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* @retval zero -> Success / +ve value -> Warning / -ve value -> Error.
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*/
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int8_t bme280_get_sensor_settings(struct bme280_dev *dev);
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/*!
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* @brief This API sets the power mode of the sensor.
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*
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* @param[in] dev : Structure instance of bme280_dev.
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* @param[in] sensor_mode : Variable which contains the power mode to be set.
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*
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* sensor_mode | Macros
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* ---------------------|-------------------
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* 0 | BME280_SLEEP_MODE
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* 1 | BME280_FORCED_MODE
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* 3 | BME280_NORMAL_MODE
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*
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* @return Result of API execution status
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* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
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*/
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int8_t bme280_set_sensor_mode(uint8_t sensor_mode,
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const struct bme280_dev *dev);
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/*!
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* @brief This API gets the power mode of the sensor.
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*
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* @param[in] dev : Structure instance of bme280_dev.
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* @param[out] sensor_mode : Pointer variable to store the power mode.
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*
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* sensor_mode | Macros
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* ---------------------|-------------------
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* 0 | BME280_SLEEP_MODE
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* 1 | BME280_FORCED_MODE
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* 3 | BME280_NORMAL_MODE
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*
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* @return Result of API execution status
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* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
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*/
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int8_t bme280_get_sensor_mode(uint8_t *sensor_mode, const struct bme280_dev *dev);
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/*!
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* @brief This API performs the soft reset of the sensor.
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*
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* @param[in] dev : Structure instance of bme280_dev.
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|
*
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|
* @return Result of API execution status
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* @retval zero -> Success / +ve value -> Warning / -ve value -> Error.
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|
*/
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int8_t bme280_soft_reset(const struct bme280_dev *dev);
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|
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|
/*!
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|
* @brief This API reads the pressure, temperature and humidity data from the
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* sensor, compensates the data and store it in the bme280_data structure
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|
* instance passed by the user.
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|
*
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* @param[in] sensor_comp : Variable which selects which data to be read from
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|
* the sensor.
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|
*
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* sensor_comp | Macros
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|
* ------------|-------------------
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|
* 1 | BME280_PRESS
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|
* 2 | BME280_TEMP
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|
* 4 | BME280_HUM
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|
* 7 | BME280_ALL
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|
*
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* @param[out] comp_data : Structure instance of bme280_data.
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|
* @param[in] dev : Structure instance of bme280_dev.
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||||||
|
*
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|
* @return Result of API execution status
|
||||||
|
* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
|
||||||
|
*/
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|
int8_t bme280_get_sensor_data(uint8_t sensor_comp, struct bme280_data *comp_data, struct bme280_dev *dev);
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|
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|
/*!
|
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|
* @brief This API is used to parse the pressure, temperature and
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|
* humidity data and store it in the bme280_uncomp_data structure instance.
|
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|
*
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|
* @param[in] reg_data : Contains register data which needs to be parsed
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|
* @param[out] uncomp_data : Contains the uncompensated pressure, temperature
|
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|
* and humidity data.
|
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|
*/
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|
void bme280_parse_sensor_data(const uint8_t *reg_data, struct bme280_uncomp_data *uncomp_data);
|
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|
|
||||||
|
/*!
|
||||||
|
* @brief This API is used to compensate the pressure and/or
|
||||||
|
* temperature and/or humidity data according to the component selected by the
|
||||||
|
* user.
|
||||||
|
*
|
||||||
|
* @param[in] sensor_comp : Used to select pressure and/or temperature and/or
|
||||||
|
* humidity.
|
||||||
|
* @param[in] uncomp_data : Contains the uncompensated pressure, temperature and
|
||||||
|
* humidity data.
|
||||||
|
* @param[out] comp_data : Contains the compensated pressure and/or temperature
|
||||||
|
* and/or humidity data.
|
||||||
|
* @param[in] calib_data : Pointer to the calibration data structure.
|
||||||
|
*
|
||||||
|
* @return Result of API execution status.
|
||||||
|
* @retval zero -> Success / -ve value -> Error
|
||||||
|
*/
|
||||||
|
int8_t bme280_compensate_data(uint8_t sensor_comp, const struct bme280_uncomp_data *uncomp_data,
|
||||||
|
struct bme280_data *comp_data, struct bme280_calib_data *calib_data);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
}
|
||||||
|
#endif /* End of CPP guard */
|
||||||
|
#endif /* BME280_H_ */
|
||||||
|
/** @}*/
|
||||||
362
components/bme280/bme280_defs.h
Normal file
362
components/bme280/bme280_defs.h
Normal file
@@ -0,0 +1,362 @@
|
|||||||
|
/**
|
||||||
|
* Copyright (C) 2016 - 2017 Bosch Sensortec GmbH
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions are met:
|
||||||
|
*
|
||||||
|
* Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
*
|
||||||
|
* Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* Neither the name of the copyright holder nor the names of the
|
||||||
|
* contributors may be used to endorse or promote products derived from
|
||||||
|
* this software without specific prior written permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||||||
|
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
|
||||||
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||||
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||||
|
* DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
|
||||||
|
* OR CONTRIBUTORS BE LIABLE FOR ANY
|
||||||
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
||||||
|
* OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
|
||||||
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||||
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||||
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||||
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||||
|
* ANY WAY OUT OF THE USE OF THIS
|
||||||
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
|
||||||
|
*
|
||||||
|
* The information provided is believed to be accurate and reliable.
|
||||||
|
* The copyright holder assumes no responsibility
|
||||||
|
* for the consequences of use
|
||||||
|
* of such information nor for any infringement of patents or
|
||||||
|
* other rights of third parties which may result from its use.
|
||||||
|
* No license is granted by implication or otherwise under any patent or
|
||||||
|
* patent rights of the copyright holder.
|
||||||
|
*
|
||||||
|
* @file bme280_defs.h
|
||||||
|
* @date 22 Nov 2017
|
||||||
|
* @version 3.3.2
|
||||||
|
* @brief
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
/*! @file bme280_defs.h
|
||||||
|
@brief Sensor driver for BME280 sensor */
|
||||||
|
/*!
|
||||||
|
* @defgroup BME280 SENSOR API
|
||||||
|
* @brief
|
||||||
|
* @{*/
|
||||||
|
#ifndef BME280_DEFS_H_
|
||||||
|
#define BME280_DEFS_H_
|
||||||
|
|
||||||
|
/********************************************************/
|
||||||
|
/* header includes */
|
||||||
|
#ifdef __KERNEL__
|
||||||
|
#include <linux/types.h>
|
||||||
|
#include <linux/kernel.h>
|
||||||
|
#else
|
||||||
|
#include <stdint.h>
|
||||||
|
#include <stddef.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/********************************************************/
|
||||||
|
/*! @name Common macros */
|
||||||
|
/********************************************************/
|
||||||
|
|
||||||
|
#if !defined(UINT8_C) && !defined(INT8_C)
|
||||||
|
#define INT8_C(x) S8_C(x)
|
||||||
|
#define UINT8_C(x) U8_C(x)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if !defined(UINT16_C) && !defined(INT16_C)
|
||||||
|
#define INT16_C(x) S16_C(x)
|
||||||
|
#define UINT16_C(x) U16_C(x)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if !defined(INT32_C) && !defined(UINT32_C)
|
||||||
|
#define INT32_C(x) S32_C(x)
|
||||||
|
#define UINT32_C(x) U32_C(x)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if !defined(INT64_C) && !defined(UINT64_C)
|
||||||
|
#define INT64_C(x) S64_C(x)
|
||||||
|
#define UINT64_C(x) U64_C(x)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/**@}*/
|
||||||
|
|
||||||
|
/**\name C standard macros */
|
||||||
|
#ifndef NULL
|
||||||
|
#ifdef __cplusplus
|
||||||
|
#define NULL 0
|
||||||
|
#else
|
||||||
|
#define NULL ((void *) 0)
|
||||||
|
#endif
|
||||||
|
#endif
|
||||||
|
/********************************************************/
|
||||||
|
|
||||||
|
#ifndef BME280_FLOAT_ENABLE
|
||||||
|
#define BME280_FLOAT_ENABLE
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifndef BME280_FLOAT_ENABLE
|
||||||
|
#ifndef BME280_64BIT_ENABLE
|
||||||
|
// #define BME280_64BIT_ENABLE // EPV
|
||||||
|
#endif
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifndef TRUE
|
||||||
|
#define TRUE UINT8_C(1)
|
||||||
|
#endif
|
||||||
|
#ifndef FALSE
|
||||||
|
#define FALSE UINT8_C(0)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/**\name I2C addresses */
|
||||||
|
#define BME280_I2C_ADDR_PRIM UINT8_C(0x76)
|
||||||
|
#define BME280_I2C_ADDR_SEC UINT8_C(0x77)
|
||||||
|
|
||||||
|
/**\name BME280 chip identifier */
|
||||||
|
#define BME280_CHIP_ID UINT8_C(0x60)
|
||||||
|
|
||||||
|
/**\name Register Address */
|
||||||
|
#define BME280_CHIP_ID_ADDR UINT8_C(0xD0)
|
||||||
|
#define BME280_RESET_ADDR UINT8_C(0xE0)
|
||||||
|
#define BME280_TEMP_PRESS_CALIB_DATA_ADDR UINT8_C(0x88)
|
||||||
|
#define BME280_HUMIDITY_CALIB_DATA_ADDR UINT8_C(0xE1)
|
||||||
|
#define BME280_PWR_CTRL_ADDR UINT8_C(0xF4)
|
||||||
|
#define BME280_CTRL_HUM_ADDR UINT8_C(0xF2)
|
||||||
|
#define BME280_CTRL_MEAS_ADDR UINT8_C(0xF4)
|
||||||
|
#define BME280_CONFIG_ADDR UINT8_C(0xF5)
|
||||||
|
#define BME280_DATA_ADDR UINT8_C(0xF7)
|
||||||
|
|
||||||
|
/**\name API success code */
|
||||||
|
#define BME280_OK INT8_C(0)
|
||||||
|
|
||||||
|
/**\name API error codes */
|
||||||
|
#define BME280_E_NULL_PTR INT8_C(-1)
|
||||||
|
#define BME280_E_DEV_NOT_FOUND INT8_C(-2)
|
||||||
|
#define BME280_E_INVALID_LEN INT8_C(-3)
|
||||||
|
#define BME280_E_COMM_FAIL INT8_C(-4)
|
||||||
|
#define BME280_E_SLEEP_MODE_FAIL INT8_C(-5)
|
||||||
|
|
||||||
|
/**\name API warning codes */
|
||||||
|
#define BME280_W_INVALID_OSR_MACRO INT8_C(1)
|
||||||
|
|
||||||
|
/**\name Macros related to size */
|
||||||
|
#define BME280_TEMP_PRESS_CALIB_DATA_LEN UINT8_C(26)
|
||||||
|
#define BME280_HUMIDITY_CALIB_DATA_LEN UINT8_C(7)
|
||||||
|
#define BME280_P_T_H_DATA_LEN UINT8_C(8)
|
||||||
|
|
||||||
|
/**\name Sensor power modes */
|
||||||
|
#define BME280_SLEEP_MODE UINT8_C(0x00)
|
||||||
|
#define BME280_FORCED_MODE UINT8_C(0x01)
|
||||||
|
#define BME280_NORMAL_MODE UINT8_C(0x03)
|
||||||
|
|
||||||
|
/**\name Macro to combine two 8 bit data's to form a 16 bit data */
|
||||||
|
#define BME280_CONCAT_BYTES(msb, lsb) (((uint16_t)msb << 8) | (uint16_t)lsb)
|
||||||
|
|
||||||
|
#define BME280_SET_BITS(reg_data, bitname, data) \
|
||||||
|
((reg_data & ~(bitname##_MSK)) | \
|
||||||
|
((data << bitname##_POS) & bitname##_MSK))
|
||||||
|
#define BME280_SET_BITS_POS_0(reg_data, bitname, data) \
|
||||||
|
((reg_data & ~(bitname##_MSK)) | \
|
||||||
|
(data & bitname##_MSK))
|
||||||
|
|
||||||
|
#define BME280_GET_BITS(reg_data, bitname) ((reg_data & (bitname##_MSK)) >> \
|
||||||
|
(bitname##_POS))
|
||||||
|
#define BME280_GET_BITS_POS_0(reg_data, bitname) (reg_data & (bitname##_MSK))
|
||||||
|
|
||||||
|
/**\name Macros for bit masking */
|
||||||
|
#define BME280_SENSOR_MODE_MSK UINT8_C(0x03)
|
||||||
|
#define BME280_SENSOR_MODE_POS UINT8_C(0x00)
|
||||||
|
|
||||||
|
#define BME280_CTRL_HUM_MSK UINT8_C(0x07)
|
||||||
|
#define BME280_CTRL_HUM_POS UINT8_C(0x00)
|
||||||
|
|
||||||
|
#define BME280_CTRL_PRESS_MSK UINT8_C(0x1C)
|
||||||
|
#define BME280_CTRL_PRESS_POS UINT8_C(0x02)
|
||||||
|
|
||||||
|
#define BME280_CTRL_TEMP_MSK UINT8_C(0xE0)
|
||||||
|
#define BME280_CTRL_TEMP_POS UINT8_C(0x05)
|
||||||
|
|
||||||
|
#define BME280_FILTER_MSK UINT8_C(0x1C)
|
||||||
|
#define BME280_FILTER_POS UINT8_C(0x02)
|
||||||
|
|
||||||
|
#define BME280_STANDBY_MSK UINT8_C(0xE0)
|
||||||
|
#define BME280_STANDBY_POS UINT8_C(0x05)
|
||||||
|
|
||||||
|
/**\name Sensor component selection macros
|
||||||
|
These values are internal for API implementation. Don't relate this to
|
||||||
|
data sheet.*/
|
||||||
|
#define BME280_PRESS UINT8_C(1)
|
||||||
|
#define BME280_TEMP UINT8_C(1 << 1)
|
||||||
|
#define BME280_HUM UINT8_C(1 << 2)
|
||||||
|
#define BME280_ALL UINT8_C(0x07)
|
||||||
|
|
||||||
|
/**\name Settings selection macros */
|
||||||
|
#define BME280_OSR_PRESS_SEL UINT8_C(1)
|
||||||
|
#define BME280_OSR_TEMP_SEL UINT8_C(1 << 1)
|
||||||
|
#define BME280_OSR_HUM_SEL UINT8_C(1 << 2)
|
||||||
|
#define BME280_FILTER_SEL UINT8_C(1 << 3)
|
||||||
|
#define BME280_STANDBY_SEL UINT8_C(1 << 4)
|
||||||
|
#define BME280_ALL_SETTINGS_SEL UINT8_C(0x1F)
|
||||||
|
|
||||||
|
/**\name Oversampling macros */
|
||||||
|
#define BME280_NO_OVERSAMPLING UINT8_C(0x00)
|
||||||
|
#define BME280_OVERSAMPLING_1X UINT8_C(0x01)
|
||||||
|
#define BME280_OVERSAMPLING_2X UINT8_C(0x02)
|
||||||
|
#define BME280_OVERSAMPLING_4X UINT8_C(0x03)
|
||||||
|
#define BME280_OVERSAMPLING_8X UINT8_C(0x04)
|
||||||
|
#define BME280_OVERSAMPLING_16X UINT8_C(0x05)
|
||||||
|
|
||||||
|
/**\name Standby duration selection macros */
|
||||||
|
#define BME280_STANDBY_TIME_1_MS (0x00)
|
||||||
|
#define BME280_STANDBY_TIME_62_5_MS (0x01)
|
||||||
|
#define BME280_STANDBY_TIME_125_MS (0x02)
|
||||||
|
#define BME280_STANDBY_TIME_250_MS (0x03)
|
||||||
|
#define BME280_STANDBY_TIME_500_MS (0x04)
|
||||||
|
#define BME280_STANDBY_TIME_1000_MS (0x05)
|
||||||
|
#define BME280_STANDBY_TIME_10_MS (0x06)
|
||||||
|
#define BME280_STANDBY_TIME_20_MS (0x07)
|
||||||
|
|
||||||
|
/**\name Filter coefficient selection macros */
|
||||||
|
#define BME280_FILTER_COEFF_OFF (0x00)
|
||||||
|
#define BME280_FILTER_COEFF_2 (0x01)
|
||||||
|
#define BME280_FILTER_COEFF_4 (0x02)
|
||||||
|
#define BME280_FILTER_COEFF_8 (0x03)
|
||||||
|
#define BME280_FILTER_COEFF_16 (0x04)
|
||||||
|
|
||||||
|
/*!
|
||||||
|
* @brief Interface selection Enums
|
||||||
|
*/
|
||||||
|
enum bme280_intf {
|
||||||
|
/*! SPI interface */
|
||||||
|
BME280_SPI_INTF,
|
||||||
|
/*! I2C interface */
|
||||||
|
BME280_I2C_INTF
|
||||||
|
};
|
||||||
|
|
||||||
|
/*!
|
||||||
|
* @brief Type definitions
|
||||||
|
*/
|
||||||
|
typedef int8_t (*bme280_com_fptr_t)(uint8_t dev_id, uint8_t reg_addr,
|
||||||
|
uint8_t *data, uint16_t len);
|
||||||
|
|
||||||
|
typedef void (*bme280_delay_fptr_t)(uint32_t period);
|
||||||
|
|
||||||
|
/*!
|
||||||
|
* @brief Calibration data
|
||||||
|
*/
|
||||||
|
struct bme280_calib_data {
|
||||||
|
/**
|
||||||
|
* @ Trim Variables
|
||||||
|
*/
|
||||||
|
/**@{*/
|
||||||
|
uint16_t dig_T1;
|
||||||
|
int16_t dig_T2;
|
||||||
|
int16_t dig_T3;
|
||||||
|
uint16_t dig_P1;
|
||||||
|
int16_t dig_P2;
|
||||||
|
int16_t dig_P3;
|
||||||
|
int16_t dig_P4;
|
||||||
|
int16_t dig_P5;
|
||||||
|
int16_t dig_P6;
|
||||||
|
int16_t dig_P7;
|
||||||
|
int16_t dig_P8;
|
||||||
|
int16_t dig_P9;
|
||||||
|
uint8_t dig_H1;
|
||||||
|
int16_t dig_H2;
|
||||||
|
uint8_t dig_H3;
|
||||||
|
int16_t dig_H4;
|
||||||
|
int16_t dig_H5;
|
||||||
|
int8_t dig_H6;
|
||||||
|
int32_t t_fine;
|
||||||
|
/**@}*/
|
||||||
|
};
|
||||||
|
|
||||||
|
/*!
|
||||||
|
* @brief bme280 sensor structure which comprises of temperature, pressure and
|
||||||
|
* humidity data
|
||||||
|
*/
|
||||||
|
#ifdef BME280_FLOAT_ENABLE
|
||||||
|
struct bme280_data {
|
||||||
|
/*! Compensated pressure */
|
||||||
|
double pressure;
|
||||||
|
/*! Compensated temperature */
|
||||||
|
double temperature;
|
||||||
|
/*! Compensated humidity */
|
||||||
|
double humidity;
|
||||||
|
};
|
||||||
|
#else
|
||||||
|
struct bme280_data {
|
||||||
|
/*! Compensated pressure */
|
||||||
|
uint32_t pressure;
|
||||||
|
/*! Compensated temperature */
|
||||||
|
int32_t temperature;
|
||||||
|
/*! Compensated humidity */
|
||||||
|
uint32_t humidity;
|
||||||
|
};
|
||||||
|
#endif /* BME280_USE_FLOATING_POINT */
|
||||||
|
|
||||||
|
/*!
|
||||||
|
* @brief bme280 sensor structure which comprises of uncompensated temperature,
|
||||||
|
* pressure and humidity data
|
||||||
|
*/
|
||||||
|
struct bme280_uncomp_data {
|
||||||
|
/*! un-compensated pressure */
|
||||||
|
uint32_t pressure;
|
||||||
|
/*! un-compensated temperature */
|
||||||
|
uint32_t temperature;
|
||||||
|
/*! un-compensated humidity */
|
||||||
|
uint32_t humidity;
|
||||||
|
};
|
||||||
|
|
||||||
|
/*!
|
||||||
|
* @brief bme280 sensor settings structure which comprises of mode,
|
||||||
|
* oversampling and filter settings.
|
||||||
|
*/
|
||||||
|
struct bme280_settings {
|
||||||
|
/*! pressure oversampling */
|
||||||
|
uint8_t osr_p;
|
||||||
|
/*! temperature oversampling */
|
||||||
|
uint8_t osr_t;
|
||||||
|
/*! humidity oversampling */
|
||||||
|
uint8_t osr_h;
|
||||||
|
/*! filter coefficient */
|
||||||
|
uint8_t filter;
|
||||||
|
/*! standby time */
|
||||||
|
uint8_t standby_time;
|
||||||
|
};
|
||||||
|
|
||||||
|
/*!
|
||||||
|
* @brief bme280 device structure
|
||||||
|
*/
|
||||||
|
struct bme280_dev {
|
||||||
|
/*! Chip Id */
|
||||||
|
uint8_t chip_id;
|
||||||
|
/*! Device Id */
|
||||||
|
uint8_t dev_id;
|
||||||
|
/*! SPI/I2C interface */
|
||||||
|
enum bme280_intf intf;
|
||||||
|
/*! Read function pointer */
|
||||||
|
bme280_com_fptr_t read;
|
||||||
|
/*! Write function pointer */
|
||||||
|
bme280_com_fptr_t write;
|
||||||
|
/*! Delay function pointer */
|
||||||
|
bme280_delay_fptr_t delay_ms;
|
||||||
|
/*! Trim data */
|
||||||
|
struct bme280_calib_data calib_data;
|
||||||
|
/*! Sensor settings */
|
||||||
|
struct bme280_settings settings;
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif /* BME280_DEFS_H_ */
|
||||||
|
/** @}*/
|
||||||
|
/** @}*/
|
||||||
126
components/bme280/bme280_sup.c
Normal file
126
components/bme280/bme280_sup.c
Normal file
@@ -0,0 +1,126 @@
|
|||||||
|
// implementations of all the stuff the Bosch BME280 reference code needs implemented
|
||||||
|
// in order to talk to an actual bme280 over i2c on esp32 in idf
|
||||||
|
// -- github.com/epvuc 12/2017
|
||||||
|
|
||||||
|
#include <string.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include "freertos/FreeRTOS.h"
|
||||||
|
#include "freertos/task.h"
|
||||||
|
#include "driver/i2c.h"
|
||||||
|
#include "bme280.h"
|
||||||
|
|
||||||
|
// pin numbers specific to this TTGO board
|
||||||
|
#define SCL_PIN 21
|
||||||
|
#define SDA_PIN 22
|
||||||
|
|
||||||
|
int8_t user_i2c_read(uint8_t dev_addr, uint8_t reg_addr, uint8_t *reg_data, uint8_t cnt);
|
||||||
|
int8_t user_i2c_write(uint8_t dev_addr, uint8_t reg_addr, uint8_t *reg_data, uint8_t cnt);
|
||||||
|
int8_t stream_sensor_data_forced_mode(struct bme280_dev *dev);
|
||||||
|
int8_t stream_sensor_data_normal_mode(struct bme280_dev *dev);
|
||||||
|
void user_delay_ms(uint32_t ms);
|
||||||
|
|
||||||
|
struct bme280_dev bme280;
|
||||||
|
|
||||||
|
void my_i2c_setup(void)
|
||||||
|
{
|
||||||
|
i2c_config_t conf;
|
||||||
|
conf.mode = I2C_MODE_MASTER;
|
||||||
|
conf.sda_io_num = SDA_PIN;
|
||||||
|
conf.scl_io_num = SCL_PIN;
|
||||||
|
conf.sda_pullup_en = GPIO_PULLUP_ENABLE;
|
||||||
|
conf.scl_pullup_en = GPIO_PULLUP_ENABLE;
|
||||||
|
conf.master.clk_speed = 20000;
|
||||||
|
i2c_param_config(I2C_NUM_0, &conf);
|
||||||
|
i2c_driver_install(I2C_NUM_0, I2C_MODE_MASTER, 0, 0, 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
void my_bme280_init(void)
|
||||||
|
{
|
||||||
|
int8_t rslt = BME280_OK;
|
||||||
|
uint8_t settings_sel;
|
||||||
|
|
||||||
|
bme280.dev_id = BME280_I2C_ADDR_SEC;
|
||||||
|
bme280.intf = BME280_I2C_INTF;
|
||||||
|
bme280.read = (void *)user_i2c_read;
|
||||||
|
bme280.write = (void *)user_i2c_write;
|
||||||
|
bme280.delay_ms = (void *)user_delay_ms;
|
||||||
|
printf("calling bme280_init\r\n");
|
||||||
|
rslt = bme280_init(&bme280);
|
||||||
|
printf("bme280 init result %d\r\n", rslt);
|
||||||
|
|
||||||
|
bme280.settings.osr_h = BME280_OVERSAMPLING_1X;
|
||||||
|
bme280.settings.osr_p = BME280_OVERSAMPLING_4X;
|
||||||
|
bme280.settings.osr_t = BME280_OVERSAMPLING_4X;
|
||||||
|
bme280.settings.filter = BME280_FILTER_COEFF_OFF;
|
||||||
|
settings_sel = BME280_OSR_PRESS_SEL | BME280_OSR_TEMP_SEL | BME280_OSR_HUM_SEL | BME280_FILTER_SEL;
|
||||||
|
rslt = bme280_set_sensor_settings(settings_sel, &bme280);
|
||||||
|
printf("bme280 settings config result %d\r\n", rslt);
|
||||||
|
}
|
||||||
|
|
||||||
|
#define SUCCESS 0
|
||||||
|
#define FAIL -1
|
||||||
|
#define I2C_MASTER_ACK 0
|
||||||
|
#define I2C_MASTER_NACK 1
|
||||||
|
|
||||||
|
int8_t user_i2c_write(uint8_t dev_addr, uint8_t reg_addr, uint8_t *reg_data, uint8_t cnt)
|
||||||
|
{
|
||||||
|
int32_t iError = 0;
|
||||||
|
|
||||||
|
esp_err_t espRc;
|
||||||
|
i2c_cmd_handle_t cmd = i2c_cmd_link_create();
|
||||||
|
|
||||||
|
i2c_master_start(cmd);
|
||||||
|
i2c_master_write_byte(cmd, (dev_addr << 1) | I2C_MASTER_WRITE, true);
|
||||||
|
|
||||||
|
i2c_master_write_byte(cmd, reg_addr, true);
|
||||||
|
i2c_master_write(cmd, reg_data, cnt, true);
|
||||||
|
i2c_master_stop(cmd);
|
||||||
|
|
||||||
|
espRc = i2c_master_cmd_begin(I2C_NUM_0, cmd, 200/portTICK_PERIOD_MS);
|
||||||
|
// printf("in user_i2c_read, i2c_master_cmd_begin returns %d\r\n", espRc);
|
||||||
|
if (espRc == ESP_OK) {
|
||||||
|
iError = SUCCESS;
|
||||||
|
} else {
|
||||||
|
iError = FAIL;
|
||||||
|
}
|
||||||
|
i2c_cmd_link_delete(cmd);
|
||||||
|
|
||||||
|
return (int8_t)iError;
|
||||||
|
}
|
||||||
|
|
||||||
|
int8_t user_i2c_read(uint8_t dev_addr, uint8_t reg_addr, uint8_t *reg_data, uint8_t cnt)
|
||||||
|
{
|
||||||
|
int32_t iError = 0;
|
||||||
|
esp_err_t espRc;
|
||||||
|
|
||||||
|
i2c_cmd_handle_t cmd = i2c_cmd_link_create();
|
||||||
|
|
||||||
|
i2c_master_start(cmd);
|
||||||
|
i2c_master_write_byte(cmd, (dev_addr << 1) | I2C_MASTER_WRITE, true);
|
||||||
|
i2c_master_write_byte(cmd, reg_addr, true);
|
||||||
|
|
||||||
|
i2c_master_start(cmd);
|
||||||
|
i2c_master_write_byte(cmd, (dev_addr << 1) | I2C_MASTER_READ, true);
|
||||||
|
|
||||||
|
if (cnt > 1) {
|
||||||
|
i2c_master_read(cmd, reg_data, cnt-1, I2C_MASTER_ACK);
|
||||||
|
}
|
||||||
|
i2c_master_read_byte(cmd, reg_data+cnt-1, I2C_MASTER_NACK);
|
||||||
|
i2c_master_stop(cmd);
|
||||||
|
|
||||||
|
espRc = i2c_master_cmd_begin(I2C_NUM_0, cmd, 200/portTICK_PERIOD_MS);
|
||||||
|
if (espRc == ESP_OK) {
|
||||||
|
iError = SUCCESS;
|
||||||
|
} else {
|
||||||
|
iError = FAIL;
|
||||||
|
}
|
||||||
|
|
||||||
|
i2c_cmd_link_delete(cmd);
|
||||||
|
|
||||||
|
return (int8_t)iError;
|
||||||
|
}
|
||||||
|
|
||||||
|
void user_delay_ms(uint32_t ms)
|
||||||
|
{
|
||||||
|
vTaskDelay(ms/portTICK_PERIOD_MS);
|
||||||
|
}
|
||||||
1
components/bme280/component.mk
Normal file
1
components/bme280/component.mk
Normal file
@@ -0,0 +1 @@
|
|||||||
|
COMPONENT_ADD_INCLUDEDIRS = .
|
||||||
14
main/main.c
14
main/main.c
@@ -11,13 +11,8 @@
|
|||||||
#include <esp_https_server.h>
|
#include <esp_https_server.h>
|
||||||
#include "bme280.h"
|
#include "bme280.h"
|
||||||
|
|
||||||
// pin numbers specific to this TTGO board
|
|
||||||
#define SDA_PIN GPIO_NUM_21
|
|
||||||
#define SCL_PIN GPIO_NUM_22
|
|
||||||
|
|
||||||
static const char *TAG = "BME280";
|
static const char *TAG = "BME280";
|
||||||
|
|
||||||
|
|
||||||
/* An HTTP GET handler */
|
/* An HTTP GET handler */
|
||||||
static esp_err_t root_get_handler(httpd_req_t *req);
|
static esp_err_t root_get_handler(httpd_req_t *req);
|
||||||
static httpd_handle_t start_webserver(void);
|
static httpd_handle_t start_webserver(void);
|
||||||
@@ -34,6 +29,11 @@ static const httpd_uri_t root = {
|
|||||||
};
|
};
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
void my_i2c_setup(void);
|
||||||
|
void my_bme280_init(void);
|
||||||
|
extern struct bme280_dev bme280; // from bme280_sup.c
|
||||||
|
|
||||||
void app_main(void)
|
void app_main(void)
|
||||||
{
|
{
|
||||||
static httpd_handle_t server = NULL;
|
static httpd_handle_t server = NULL;
|
||||||
@@ -60,6 +60,10 @@ void app_main(void)
|
|||||||
* examples/protocols/README.md for more information about this function.
|
* examples/protocols/README.md for more information about this function.
|
||||||
*/
|
*/
|
||||||
ESP_ERROR_CHECK(example_connect());
|
ESP_ERROR_CHECK(example_connect());
|
||||||
|
|
||||||
|
my_i2c_setup();
|
||||||
|
my_bme280_init();
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
static esp_err_t root_get_handler(httpd_req_t *req)
|
static esp_err_t root_get_handler(httpd_req_t *req)
|
||||||
|
|||||||
Reference in New Issue
Block a user